This may be surprising, but I am a very sentimental person. I love savoring moments present and past. When I close a chapter of my life—by graduating from a school, ending a relationship, leaving a job, and so on—I always want closure, one last good look around, a satisfying sense of neatly wrapped loose ends. I am a completionist who hates feeling as though I am missing out on part of any experience.

Parenthood exposes this aspect like an open wound that you can’t stop poking because you relish the sting. I don’t want to miss anything cute or funny or interesting from my baby. I want to catch every smile, coo, and even pout. I love holding his warm little body, looking into his wondering eyes, rubbing his soft cheeks, smelling his milky breath and his hair that smells like both mine and his father’s. Part of me hates that I’ll be going back to work full-time and will most likely miss his first steps and words.

And yet, the days are sometimes so, so hard because I worry so much about being the optimal nurturer. Is the baby crying too much? Is he sleeping enough? Am I talking to him enough to stimulate mental growth? Am I having him do enough tummy time and other activities for physical growth? Is he going to have developmental problems because I spend too much time on my phone and leave the TV on? Am I enforcing bad habits and associations? Some days, the hours pass at a miserable crawl. I count them down until the end of the day, the end of the week, and finally the arrival at some milestone when everything is supposed to get easier and better. At these times, I can’t wait to go back to work so I can stop obsessing over the baby and feel more like my old, “normal” self again.

They say, “The days are long, but the years are short.” My son is seven weeks old tomorrow. I can’t believe he’s already seven weeks old, but I also remember how far in the future this date used to feel whenever I was frustrated and exhausted. I remember how long my pregnancy felt, too. This baby takes so long to grow, and then he grows up too quickly.

The other day, I started a memories box for him. It contains ultrasound photos, hospital wristbands, medical charts, and cards from friends and family. Reviewing the ultrasound photos makes me so emotional. It is incredible to consider how this thirteen-pound living, breathing boy grew from a tiny bean. Eventually, my baby will be too big to nap on my torso. He may want to stop nursing before I do. Then, one day, I will have picked him up for the last time, not knowing it would be the last. There will never be any sort of closure.

Those kinds of thoughts wreck me, they really do.